US 12,297,326 B2
Copolymers, their preparation and use
Chantelle Duckworth, Thornton Cleveleys (GB); Don Thomas, Thornton Cleveleys (GB); Jack Atkin, Thornton Cleveleys (GB); Jason Bell, Thornton Cleveleys (GB); John Grasmeder, Thornton Cleveleys (GB); Nigel Slater, Thornton Cleveleys (GB); Oliver Carrdus, Thornton Cleveleys (GB); Samuel Lowe, Thornton Cleveleys (GB); Stuart Fenton, Thornton Cleveleys (GB); William Greene, Thornton Cleveleys (GB); and Adam Chaplin, Thornton Cleveleys (GB)
Assigned to VICTREX MANUFACTURING LIMITED, Thornton Cleveleys (GB)
Appl. No. 18/005,531
Filed by VICTREX MANUFACTURING LIMITED, Thornton Cleveleys (GB)
PCT Filed Jun. 22, 2021, PCT No. PCT/GB2021/051582
§ 371(c)(1), (2) Date Jan. 13, 2023,
PCT Pub. No. WO2022/013520, PCT Pub. Date Jan. 20, 2022.
Claims priority of application No. 2010909 (GB), filed on Jul. 15, 2020; application No. 2100274 (GB), filed on Jan. 8, 2021; and application No. 2100282 (GB), filed on Jan. 8, 2021.
Prior Publication US 2023/0257505 A1, Aug. 17, 2023
Int. Cl. B29C 64/118 (2017.01); B33Y 70/00 (2020.01); C08G 8/02 (2006.01); C08G 65/40 (2006.01); C08L 27/12 (2006.01); C08L 71/10 (2006.01); B29C 64/153 (2017.01); B29K 71/00 (2006.01); B29K 105/00 (2006.01); B33Y 10/00 (2015.01)
CPC C08G 8/02 (2013.01) [B33Y 70/00 (2014.12); C08G 65/4012 (2013.01); C08G 65/4093 (2013.01); B29C 64/153 (2017.08); B29K 2071/00 (2013.01); B29K 2105/0085 (2013.01); B33Y 10/00 (2014.12); C08G 2650/40 (2013.01)] 19 Claims
 
1. A copolymer consisting essentially of repeat units of formula I:
—O-Ph-O-Ph-CO-Ph-  I
and repeat units of formula II:

OG Complex Work Unit Chemistry
and end units,
wherein the molar ratio of repeat units of formula I to repeat units of formula II is from 55:45 to 95:5; and
wherein the repeat units of formula I consist essentially of 50 to 90 molar % of repeat units of formula III:

OG Complex Work Unit Chemistry
and
10 to 50% by molar % of repeat units which are of formula IV, of formula V or of a mixture thereof;
wherein the repeat unit of formula IV is:

OG Complex Work Unit Chemistry
and the repeat unit of formula Vis:

OG Complex Work Unit Chemistry